jackson



v. H. JACKSON.

EXCAVATING BUCKET.

APPLICATION FILED JUNE 28 1920.

Patented Deu. 27, 1921.

2 SHEETS-SHEET l.

V.l H. JACKSON.

` EXCAVATINGBUCKET. APPLICATION FILED xuN'E 28. 1920.

Pateted Dec.- 27, 1921.'

2 SHEETS-SHEET 2.

VILAS H. JACKSON,

lait

EXCAVA'EING-BUCKET.

Application led June 28,

T0 @ZZ whom 'it may cof/wem.'

Be it known that I, ViLAs H. JACKSON, a citizen ofv the United States, residing at Cleveland, in the county of Cuyahoga and IState of Ohio, have invented certain new and useful Improvements in Excavating-B uckets, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to excavating buckets and more particularly to a bucket adapted for use fin all kinds of excavating operations and with most types of excavating machinery which are at present in use.

An important object of the invention is to 'provide a bucket of th is type wherein the opf eration of the bucket is semi-automatic.

A further object of the invention is to provide a bucket of the type described which may be readily adjusted for use in various kinds of work and soils, and in which such adjustments may be made with a minimum expenditure of labor and time.

A further object of the invention is to provide a bucket which inV its various sizes is particularly adapted to strip coal and ore lands, quarries, level town sites, make cuts and fills in railway and highway construction, and in fact upon all 'manner of construction operations such as cam and mill ponds, bridge ap'- proaches, levees, ditches, su ways and cellars, and for unloading open top scows and storage bins.

A further object of the invention is to provide a bucket which requires but an instants light and safe work at the site ofexcavation immediately before and after filling, from but one laborer who may also act as a signal man, and with which the dragging of the lot d to dump, dumping, righting and returning the bucket to excavation are entirely controlled by the engineer from his proper place, by manipulation of the controlling cables.

Further objects and advantages of my apparatus will become` apparent throughout the course of thefollowing description.

In thev accompanying drawings, wherein- .tor the purpose of illustration is shown a preferred embodiment of Vmy invention and wherein like reference characters designate like parts throughout:

Fi gure l is a plan View of my bucket.

Fig. 2 is a detail viewv of one of the outer digger teeth employed in my bucket.

Fig. 3 is a detail view ofthe same digger 1320. Serial No. 392,236.

of the'chain guide em- Spec'fication of Letters Patent. Pgaggugd Dg@ 27,1921 y Fig. 8 is a fragmentary detail view showing the notches formed in the rear wall of the shell.

Referring now more particularly to 'the drawings, the numeral l0 indicates the usual bucket shell which, in the construction of the device, will bemade in various sizes in ac cordance with the requirements of the work. This shell is provided with the usual open front end and top and is provided upon the bottom and rear surfaces thereof with reinforcing strips or'shoes ll which contact the ground and prevent undue wear upon the shell l0. The bucket is provided upon the forward edge of the bottom thereof with excavating teeth l2 and 13, secured thereto in any suitable inanner. riheteethvl, or end teeth, are of the usual construction and require vno further description. rllhe teeth i3', or outer teeth are'situated adjacent the sides of the bucket at the bottom edge thereof 'and are provided upon their outer Vsurfaces with outstanding integral lugs 13 which pivotally receive the side arms Lief a bail. The'bail arms ll are held in position by means of braces l0 having engagement withl the pivots 1 8 as at l1 and secured rearwardly to the shell lO.

These side arms lllare provided at their lower ends or those ends thereof adjacent the pivot 13 with a forwardly disposed cutting point l5 which normally engages the ground as the bucket is slid thereover and witha rearwardly extending foot '16' provided with a sharpened anchor point or tooth 17 for use in dumping on slippery grades. rEhe arms 14 extend vertically a short distance and areV then provided with a bend and extend forwardly from the bucket. By inspecting the drawings it will be seen that while these fory wardlyl extending portions are approximately horizontal the tooth 17 is free from engagement with the ground and that whenk the forwardly extending portions are shifted to, or slightly bevond7 the vertical position, the tooth 17 cornes into engagement with the ground.

The' forward ends oil the side armeA 14 of the bail are spaced by a combined spacing and retaining member 18 which embodies a spacing,` sleeve 19 arranged interni liate the arms, and a bolt or retaining member 2O which extends through the arms and through the sleeve 19 and is held in position by nuts 21, the correct positioning the sleeve 19 with the retaining member 2O being` insured by sleeves 18 arranged in the ends of the sleeve 19 through which the retaining member 20 extends.

rlfhe upper forward ends or the side of the shell 10 are spaced and positionec a similar device embodying,` a sleeve tending` intermediate the inner i, shell 10 and provided in its end ducing` sleeves 22. A retaining nienl, -r 23 extends through the sleeve and through the side Walls of the s icll 10 and is secured to said side walls in ani' suitable manner, prelerabl;7 by riveting; ends or the retaining member 23 in order that these ends may be flush with the outer surface or" the shell 10 to provide clearance for the pivotally mounted side arms 14: oit the bail.

Formed in the rear Wall oi 'the shell 10, centrally thereof and the an opening` 10. lSecured to the Wall oi shell siurounding` the opening` 10 is a chain guide 25 provided with the usual tapered right angular slots for the reception d guiding of the chain. Secured to the shell oi: the bucket, at or adjacent 'the heel 26 thereof7 is an eye bolt 2G homing` secured thereto a chain 27 which passes through .lie opening 10 and chain guide 25 and has its forward end secured to a ring` l?) rotatably mounted upon the bail arms spacing member 18. Al. short chain A1 has its rear end connected to the plate 13 its end pivotall3.7 connected with an open stand-- ard wire rope soclret 28.

To the forward ends of the are secured guys 29 t ends secured to the socket 28. is secured to the cross arrr bail at such a point that it becomes at the sanie time as the guy chains 29. f socket 28 has secured to its Jorrvard end a draft line or cable b1e hereinatter. referred to as the main haul line. a A l f i They chain 2'? is provided adjacent the rear. @ed thereof, t ,with a i liek .45 i @who .dries au urelalilueehelllder .or lue and di scent At" el ferrate-end hereof with reeling Intese 21e-Irish@ :ferr-Ter Sterflele eef.- @mbeelymg outstanding; Shout.; @srs ,rtsdteensaee thesileaot the guide 25 to Vlimit rearward niovement'ior4 alls bail

having lleiif cha'n This stop link is preferably so with relation to the forward link 15 that i1 engag the guide 25 as soon as r 5 has passed suiliciently allow its engagement by nef-ted a lever par-,fl 33 having shoulder 3 adapted to engage the lugs orc the linlvs 45 of the chain to lool; thel saine against being drawn through the opening` 10 and guide sa lt will be seen when the chain is drawn sufficiently iar rearwardly to allo-rv the paivl 38 to engage forward linlv l5 that the arms 1e are drawn Well to the rear und the points 17 thereorn will be in engagement with the ground. rllho type of: chain used., which is the bloclr chain having a upper surface will permit rele? Y ine; of the parvl immediatelf,Y after the stop linlr l5 with which it is engaged has passed the shoulder of the pavvl slidii upon tl 3er surface oit the chain un il it comes Will therefore, be that it the pawl is in enggadement 'th the forward linlr 45 it is elevated the forward pawl e5 the main haul line t cause the arms t e o; the side Walls of the shoulder 10 .tor the reeeution thereof.

A sheave 35 is provided embodying u chain-.wheel 36 which receives the chain intermediate the eye bol" 26 and point 1 i N n i a which "ie eh passes tlnouen the opent I: i A n im 1 w oi ne ineniner 32. secured to the shea 85 as by means oiA a. taper, soclret joint gli is a draft line or cable 3S,hereina,ifter zre 11 1+ n tl 1+'.L.'11'-, l reiiea c as, e ouJ au nie.4 Y. ,4, is b usedor s" a ioperateddm .me r1 fuelinn l J' gradinann'erat ened tomove the bucket into engagement with the next stop linl. f lt icc List

to the point at Which the excavating operation is to commenceout haul line is now released and the field operator momentarily raises the lever pawV disengaging the shoulder 3a thereof from the forward stop link 45 of the chain 27. rlhe main haul line is now .lpjlitened and the chain moves through until it brings the rear stop link 45 thereof into engagement with, the paivl shoulder piaci the bail arms 14 in the proper digging angle. mhe main line drum' continues drawing on the main haul line 31 rnd the teethv 12 and 13 engage the earth, the 'teeth causing' the rearend of the bucket to elevate to the proper digging angle. lllieu the bucket is filled the field operator raises the pavvl allowing the bail arms lei to drop and the bucket noiv slides freely upon tlioshoes thereof to the dumpingpoint. 'mi i is then slackened and MLe main line di the out haul line Lightened drawing the bail .rms le upwardly, automatically locking icm in vertical position as the adjustable 6 reaches the guide 25 and throwing` *li l engagement with the slidingof the bucket own hill. he out haul line the main line engaged, 17 eilig in engagement with the and the forward extensions of the `:ins i-i being locked in approiiimat y reiaicaL position indicated )y the dotted lines in the drawing, `the tension placed on the bail arms by the main haul line causes the bucket to dump, and the contents thereof to fall out. 'l`y he main line isthen released and the out haul tightened, pulling; the bucket to an upright position. As this tightening is contid the bucket tilts so that it rides upon the rounded heelf@ in its return to the starting point. In order to prevent cuttingof the chains 29 1when dumping` I provide in the rear Wall of the shell 1() notches 49 for the reception thereof.

lt will be obvious that by the construction recited the amount of labor ordinarily reouii d for dumping the bucket and returnsame to normal position is eliminated and that the 1-abfn required of the field opcrater is not such that it requires greatv strength.

Giving t@ the principal construction of my bucket whereby in using and during filling' the bucket requires no excess Weight beyond that necessary to secure sufficient strength in construction it ivill accordingly be capable of manufacture at a relatively low cost. l

Due to the bail fulcrum or pulling point of the bucket being` located at the lower forward end 'thereof and comparatively close to the forward ends of the front of the teeth,

it is practically impossible for my bucketV to be primarily dumped from Striking some plish the Work in a most satisfactorymanner and at a higher rate of speed than any known existing` bucket. Due to the light Weightv of the bucket the depreciation of equipment and cost of operating are relatively low. i

Cars, trucks and Wagons may be loaded for the use of my bucket by simply providing` the usual inclinedchutes having a stop for the bucket. and a large opening` at the point of dumping.

lt will be still further obvious that n any obvious c langes in the shape, size and arrangement of the various parts hereinbefore shown and described may be resorted to, and l accordingly .do not limit myself to the specified structure hereinbefore set forth, but may make any'such changes Without departing from the spirit of the invention or the scope of thesubjoined claims.V

Havingv new described my invention, what l claim is:

1. in an excavating bucket, a shell, a bail embodying,1 side arms pivotally` connectedV when the side arms are horizontally disposed and engagingthe ground as the arms are shifted to the vertical position.

2. In an excavating bucket, a shell, a bail embodying side arms pivotally connected with said shell atfits forward end adjacent the bottom thereof, said bail being adapted to be adjustably positioned about the pivots thereof, a chain guide secured to the rear end of said shell approximately centrally thereof, a chain secured at one end to the exterior of the rear end of said shell, a cross arm connecting the side arms of said bail, said chain extending throughsaid guide and o; showing one application of my device in being secured to said cross arm, a tooth carried by each of said side arms, said teeth being out of engagement with the ground when the side arms are horizontally disposed and the ground the arms are shifted to the vertical position, a draft line secured tc the free ends of said bail arms and adapted to shift said shell in one direction, a rotatable member said chain intermediate its point of connection with lsaid shell and said guide and a second draft line connected with said rotatable member and adapted to shift said shell in t ie opposite direction.

3. ln an excavating bucket, a shell provided rearwardly with a heel, a bail arm pivotally connected to each side of said shell at the forward end thereof adjacent the bottom, a chain secured to the outer surface of said shell adjacent the heel thereof, and operatively connected with said bail a draft line connected to the free ends of said bail arms and adapted to move the shell in one direction, a draft line engaging said chain and adapted to move the bucket inthe opposite direction, whereby said draft lines s iift said bail arms about the pivots there of, and means for engaging said chain to secure said bail arms against movement by said chain. i

il. ln an excavating bucket, a shell, a bail embodying side pivotally connected with said shell at its forward end adjacent the bottoni thereof, said bail being adapted to be adjustably positioned about the pirots thereof, a chain guide secured to the rear end of said shell approximately centrally thereof, a chain secured at one end to the eX- terior of the rear end of said shell, a cross arm connecting the side arms of said bail, said chain extending through said guide and being secured to said cross arm, a tooth carried by each of said side arms, said teeth being` out of engagement with the ground when the side arms are horizontally disposed and engaging the ground as the arms are shifted to the vertical position, and means for locking' said chain to prevent movement thereof.

5. ln an excavating bucket, a shell, a bail embodying side arms pivotally connected with said shell at its forward end adjacent the bottom thereof, said bail being adapted to be adjustably Vpositioned about the pivots thereof, a chain guide `secured to the rear end of said shell approximately centrally thereof, a chain secured at one end to the exterior of the rear end of said shell, a cross arm connecting the side arms of said bail, said chain extending through said guide and being secured to said cross arm, a tooth carried by each of said side arms, said teeth being out of engagement with the ground when the side arms are horizontally disposed and engaging the ground as the arms are shifted to the Vertical position, and a 'stop adjustably mounted upon said chain intermediate said bail arms and said guide.

6. in an excavating bucket, a shell, a bail embodying side arms pivotally connected with said shell at its forward end adjacent the bottom thereof, said bail being adapted to be adjustably positioned about the pivots thereof, a chain guide secured to the rear end of said shell approximately centrally thereof, a chain secured at one end to the exterior of the rear end of said shell, a cross arm connecting the side armsof said. bail, said chain extending through said guide ane beingsecured to said cross arm, a tooth carried by each of vsaid side arms, said teeth being out of engagement with the ground when the side arms are horizontally disposed and the ground as the arms are shifted to the Vertical position, means for locking the chain to prevent movement thereof and stop adjustably mounted upon said chain intermediate said bail armsand said guide.

7. ln an excavating bucket, a shell provided rearwardly With a heel, a bail arm pivotally connected to each side of said shell the forward end thereof, a chain secured to the outer surface of said shell adjacent the heel thereof and operatively connected with said bail arms, the free ends of said hails arms being` adapted for attachment to a draft line to move the shell in one direc'- tion, and a chain Wheel engaging said chain and adapted for attachment to a draft line to move the shell in the opposite direction.

ln testimony whereof li hereupon affix my signature.

vitae n, morsen. 

